90999920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103409}}^1$

素因数の和:103433

約数の個数: 40

約数和(自身を含む): 230811120

約数和(自身を除く): 139811200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 103409, 206818, 413636, 517045, 827272, 1034090, 1137499, 1654544, 2068180, 2274998, 4136360, 4549996, 5687495, 8272720, 9099992, 11374990, 18199984, 22749980, 45499960, 90999920]

約数ペア:

[(1, 90999920), (2, 45499960), (4, 22749980), (5, 18199984), (8, 11374990), (10, 9099992), (11, 8272720), (16, 5687495), (20, 4549996), (22, 4136360), (40, 2274998), (44, 2068180), (55, 1654544), (80, 1137499), (88, 1034090), (110, 827272), (176, 517045), (220, 413636), (440, 206818), (880, 103409)]